中国物理B ›› 2020, Vol. 29 ›› Issue (2): 24701-024701.doi: 10.1088/1674-1056/ab5f00

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Quantitative temperature imaging at elevated pressures and in a confined space with CH4/air laminar flames by filtered Rayleigh scattering

Bo Yan(闫博), Li Chen(陈力), Meng Li(李猛), Shuang Chen(陈爽), Cheng Gong(龚诚), Fu-Rong Yang(杨富荣), Yun-Gang Wu(吴运刚), Jiang-Ning Zhou(周江宁), Jin-He Mu(母金河)   

  1. 1 Science and Technology on Scramjet Laboratory, Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    2 Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    3 College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • 收稿日期:2019-07-28 修回日期:2019-12-22 出版日期:2020-02-05 发布日期:2020-02-05
  • 通讯作者: Shuang Chen E-mail:chenshuang827@gmail.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 91641118) and the Fenglei Youth Innovation Fund of China Aerodynamics and Research Development Center, China (Grant Nos. FLYIF20160017 and PJD20180131).

Quantitative temperature imaging at elevated pressures and in a confined space with CH4/air laminar flames by filtered Rayleigh scattering

Bo Yan(闫博)1,2,3, Li Chen(陈力)1,2, Meng Li(李猛)1,2, Shuang Chen(陈爽)1,2, Cheng Gong(龚诚)2, Fu-Rong Yang(杨富荣)1,2, Yun-Gang Wu(吴运刚)1,2, Jiang-Ning Zhou(周江宁)1,2, Jin-He Mu(母金河)1,2   

  1. 1 Science and Technology on Scramjet Laboratory, Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    2 Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    3 College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2019-07-28 Revised:2019-12-22 Online:2020-02-05 Published:2020-02-05
  • Contact: Shuang Chen E-mail:chenshuang827@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 91641118) and the Fenglei Youth Innovation Fund of China Aerodynamics and Research Development Center, China (Grant Nos. FLYIF20160017 and PJD20180131).

摘要: Laminar methane/air premixed flames at different pressures in a newly developed high-pressure laminar burner are studied through Cantera simulation and filtered Rayleigh scattering (FRS). Different gas component fractions are obtained through the detailed numerical simulations. And this approach can be used to correct the FRS images of large variations in a Rayleigh cross section in different flame regimes. The temperature distribution above the flat burner is then presented without stray light interference from soot and wall reflection. Results also show that the extent of agreement with the single point measurement by the thermocouple is <6%. Finally, this study concludes that the relative uncertainty of the presented filtered Rayleigh scattering diagnostics is estimated to be below 10% in single-shot imaging.

关键词: filtered Rayleigh scattering, high-pressure combustion simulator, temperature measurement

Abstract: Laminar methane/air premixed flames at different pressures in a newly developed high-pressure laminar burner are studied through Cantera simulation and filtered Rayleigh scattering (FRS). Different gas component fractions are obtained through the detailed numerical simulations. And this approach can be used to correct the FRS images of large variations in a Rayleigh cross section in different flame regimes. The temperature distribution above the flat burner is then presented without stray light interference from soot and wall reflection. Results also show that the extent of agreement with the single point measurement by the thermocouple is <6%. Finally, this study concludes that the relative uncertainty of the presented filtered Rayleigh scattering diagnostics is estimated to be below 10% in single-shot imaging.

Key words: filtered Rayleigh scattering, high-pressure combustion simulator, temperature measurement

中图分类号:  (Pressure and temperature measurements)

  • 47.80.Fg
47.70.Pq (Flames; combustion) 47.80.Jk (Flow visualization and imaging) 33.20.Fb (Raman and Rayleigh spectra (including optical scattering) ?)